[Amun-Ra]

It's good but IMO not near as good as Fallout3. Bethesda didn't make this one is why.
I did about everything you could do on 3, put 80 hours on one file, and 60 on another. Awesome and very addicting game.

Obsidian developed it, true but Bethesda still put it out. I think it plays almost identical to FO3.

This may seem weird, but I don't even know what the game is about. Could someone give me short run-down of Fallout?

Fallout is a RPG game based on an apoctclyptic future and the struggle to survive in the wasteland.
Fallout 3 is simpley put, awesome. The world is massive. So many things to do and accomplish. As you play, your character has to make decisions. These decisions can alter things in the world. If you kill a certain person early in the game, you might knock yourself out of getting something later, etc.

Fallout: New Vegas is not really a sequal of FO3 but an entirely new experience that is taking place at the sametime as FO3, just on the other side of the USA. The world is still as big and there are still consequences to your actions.

I wasn't much on games of this type, but I gave FO3 a try and I loved it.